Solve the system of linear equations in terms of a, where a=z
2x-7y-2z=-4
-10x-14y-6z=8

The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. last year there were 63 inches of snow. find the number of standard deviations from the mean that is, rounded to two decimal places. 0.44 standard deviations below the mean 2.50 standard deviations below the mean 0.44 standard deviations above the mean 2.50 standard deviations above the mean

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12